Wire-supporting arrangement



Jan. 1, 1929.

F. M. HOFFMAN WIRE SUPPORTING ARRANGEMENT Filed Dec. 2'7, 1927 l atentedJan. 1, 1929.

UNITED STATES FRANCIS M. HOFFMAN, OF DETROIT, MICHIGAN.

' WIRE-SUPPORTING ARRANGEMENT.

Application filed December 27, 1927. Serial N 0. 242,924.

This invention relates to wire supporting arrangements, and consistsessentially 1n an arm bracket having two piece insulators mountedthereon. The invention aims, among other things, to provide a wiresupporting arrangement wherein no parts have to be detached in order toplace wires between the insulator portions, and consists in theprovision of insulator portions slotted from one end and correspondingslots in the arm bracket extending beyond the slotted insulator ends sothat bolts extending through the arm slots may either engage theinsulator slots and have their nuts tightened against the upperinsulator portions, or cl se be moved clear of the insulator portions sothat the latter may be moved pivotally about other bolts which passthrough the said arm and the opposite ends of the insulator port-ions.

A preferred embodiment of the invention is hereinafter more fullydescribed with the aid of the accompanying drawings, in which:

Figure 1 illustrates a front view of the invention, and

Figure 2 is a side view thereof.

Rererring to the drawings, 1 designates an arm bracket, which may bearranged either vertically, as shown, or horizontally. In the presentinstance it i p ovided with a hole 2 to receive a bolt 3 by which it issecured to a support 1, though any other preferred means may be employedfor mounting the said arm bracket.

'ihrough the arm bracket 1 a plurality of holes 5 and slots 6 are cut.The holes are prefer bly square to receive the square shanks 7 of thebolts 7 and through the slots are other bolts 8. The upper and lowerinsulator portions 9 and 10, which are similar, have slots 11 and 12extending longitudinally therethrough from one end, and holes 13 and 14through their opposite ends for the passage of the bolts 7. In the innersides of the insulators opposed grooves 15 and 15 are provided toreceive the wires as shown at 16.

Before the arm bracket is installed it is usual to place the insulatorportions 9 and 10 in position and insert the bolts 7 through the holes5, 14 and 13, and the bolts 8 through their slots 6. The bolts 8, thenuts 8' on which are loose, may then be moved longitudinally in theirslots 6 into the position indicated at 8 to free the insulator port-ionsso that they may be turned pivotally about their bolts 7. The upperinsulator portion 9 is then turned into the position indicated at 9 sothat the wire 16 may be inserted into its lower groove 1?. The saidportion 9 is then turned back to cover its lower portion 10 and then thebolt 8 is moved into engagement with the slots 11 and 12. The nuts 7 and8 should then be tightened.

From the foregoing it will be clearly seen that a simple and effectivemeans has been devised for holding the insulator portions so that noparts need be detached in order to place wires in position between thesaid portions.

hat I claim is:

1. An arrangement of the character described comp *ising an arm bracket,means for supporting said bracket, upper and lower insulator portionsone overlying the other, means towards one end of said portions formounting them pivotally on said arm bracket, said portions having slotstherethrough extending from their opposite ends, said arm bracket havinga slot therethrough registering with said first named slots andextending beyond the latter, a bolt through said arm bracket slotadapted to hold said insulator portions in position when in engagementwith said insulator slots or to be moved clear of the latter to permitthe said portions to be moved about said first named bolt, and means forholding a wire between the adjacent faces of said portions.

2. An arrangement of the character described comprising an arm brackethaving a hole and a slot therethrough, an upper and a lower insulatorport-ion each having a. hole therethrough registering with said armbracket hole, a bolt extending through all three holes, said insulatorportions also having slots therethrough from one end which register withpart of said arm bracket slot, the latter extending beyond saidinsulator port-ions, said portions in their contiguous sides havingopposed recesses adapted to receive a wire, and another bolt throughsaid arm bracket slot adapted to extend through the slots in saidinsulator portions or to be moved clear of said portions so that thelatter may be turned pivotally about said first named bolt.

FRANCIS M. HOFFMAN.

